GRAFTON WATERWORKS: EPA violation history, explained

GRAFTON WATERWORKS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 12,269, over 4,544 connections.

How this compares nationally

Out of 12,903 systems in this dataset, GRAFTON WATERWORKS ranks 5,736th by violation burden (56th percentile) - 136 violations total, 2 health-baseds.

Against the WI average

WI's 202 covered systems average 3.6 health-based violations each; GRAFTON WATERWORKS carries 2, not more than typical for the state. See the lead and copper guide for why lead counts differently.

Most recent violation on record

GRAFTON WATERWORKS's most recent violation on record is dated 2008-01-01, with the most recent health-based one dated 2000-01-06. Last reported to EPA: 05/29/2026.

The concern categories on record

GRAFTON WATERWORKS's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:

• Microbial contamination / treatment technique - flagged from: Coliform (TCR)

The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.

What GRAFTON WATERWORKS's record does not cover

This is what GRAFTON WATERWORKS reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. Between the utility's meter and GRAFTON WATERWORKS's customers' taps is household plumbing, invisible to a system-level record ranked 5,736th of 12,903 by violation count. The guide to what this data misses covers that gap.